Hannover 2013 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

MO 20: SYCD: Interatomic and Intermolecular Coulombic Decay

MO 20.2: Hauptvortrag

Donnerstag, 21. März 2013, 11:30–12:00, E 415

Inter-atomic Coulombic decay in endohedral fullerenes — Narges Bahmanpour and •Vitali Averbukh — Department of Physics, Imperial College London, Prince Consort Rd, SW7 2AZ, London, UK

Interatomic Coulombic decay (ICD) in endohedral fullerene complexes presents a special interest due to its ultrafast and possibly non-destructive character [1]. Here we consider for the first time the variation of the decay width of the endohedral inner-valence vacancy with the displacement of the endohedral atom from the fullerene centre. Excitation of multipole fullerene plasmons by ICD in the off-centre geometry is predicted [2]. Distinction is made between averaging over classical ensemble of random displacements and over coherent vibrational state of the endohedral ion inside the cage. Finally, orbital overlap effect is considered within the lowest-order Wigner-Wesskopf theory.

[1] V. Averbukh and L. S. Cederbaum, Phys. Rev. Lett. 96, 053401 (2006).

[2] N. Bahmanpour and V. Averbukh, in preparation.